53. An outdoor storage area must be watertight. Water from the storage area must be collected and not contain a concentration of BOD5 or TSS in excess of 30 mg/litre before it is discharged into the environment or into a storm sewer unless it is treated with process water or discharged into a sewer system.
If the stored materials consist of treatment sludge, de-inking sludge or bark, the water from the materials must comply with the provisions of section 104 before it is discharged into the environment or into a storm sewer unless it is treated with process water or discharged into a sewer system.